Most scientific research on lemongrass essential oil has been done on animals or in vitro — not on humans. As a result, there’s no standardized dose to treat any condition. It’s unclear if animal doses would have the same effects on humans.

To use lemongrass in aromatherapy, add up to 12 drops of essential oil to 1 teaspoon carrier oil such as coconut oil, sweet almond oil, or jojoba oil. Mix into a warm bath or massage into your skin. Never apply essential oils directly to your skin.

You can also inhale lemongrass oil directly. Add a few drops to a cotton ball or handkerchief and breathe in the aroma. Some people massage the diluted essential oil into their temples to help relieve headaches.

Shop for the essentials:

• organic lemongrass oil
• coconut oil
• sweet almond oil
• jojoba oil
• cotton balls

Remember that essential oils aren’t regulated by the U. S. Food and Drug Administration (FDA). It’s hard to know for sure if you’re buying a pure product, so you should only purchase from manufacturers you trust. Look for organic oils manufactured by a brand that’s a member of the National Association of Holistic Aromatherapy.